488 HYPSELOSTOMA. — ANOSTOMA. 
XII. Hypselostoma Benson. 
Pfr. Mon. Helic. IV. p. 325; V. p. 437. — Stoliczka in Journ. 
As. Soc. Beng. XL. 1871. Pt. 2. p. 172: genus Pupidarum. — 
Pütel Catal. 1873. p. 15. 109: genus Pupaceorum. — Tuanystoma 
Bens. olim. 
Species : 
1. tubiferum Eens. (Coll 41.) IV. 325. V. 437. — Stoliczka in Journ. 
As. Soc. XL. 1871. p. 473. t. 7. f. 4. — Hanl. & Theob. Conch. 
Ind. t. 8. f. 3. —  Pütel Cat. p. 109. —  Tanystoma tubiferum 
Bens. — Birmania. 
2. Bensonianum W.Hianf. 4 V.437. — Hanl. & Theob. Conch. Ind. 
t. S. f. 2. — Ava. 
3. H. Dayanum Stoliczka. | 
«H. testa minuta, conoidea, solidula, pallide brunnea, apice 
obtusiuscula, late profundeque perspective umbilicata; anfrac- 
tibus 4, convexis, suturis profundis sejunctis, primo laevigato, sub- 
mammillato, ceteris stris incrementi subobsoletis notatis, ultimo 
maximo, fere plane voluto, supra ad peripheriam subangulato, 
deinde sensim angustiore et ad marginem umbilici rursus obtuse 
angulato; apertura fere verticali, vix descendente, conspicuiter 
dilatata, subcirculari; marginibus junctis, intus crassiusculis et 
plicose dentatis; labio adnato-modice expansiusculo, bidentato, 
dente superiore majore; labro sexdentato: dentibus duobus in 
regione columellari sitis subdistantibus, alteris duobus, in mar- 
gine externo, similiter inter se remotis, sed duobus in margine 
basali sitis approximatis, parvis. — Diam. maj. 4,1, min. 0,8, 
alt. 4 mill.» (St.) 
Hypselostoma | Dayanwum | Stol. in. Journ. As. Soc. Beng. XL. 
48142:Pt::27. p- 4M 23r dfe nac 
Habitat Damotha prope Moulmein provinciae Tenasserim. 
Obs. «Forma simile H. Bensoniano Blanf., sed differt forma an- 
fractus ultimi et dentitione aperturae.» 
Obs. Genus Plectostoma H. Adams (Pr. V. 436) synonymum est 
Opisthostomatis Bens. inter Pneumonopoma. 
XIII. Anostoma Fischer. 
Pfr. Mon. Helic. L p. XVIE. 4; HL p. 284; IV. p. 326; 
V. p. 438. — Püátel Catal. 1873. p. 14. 98: genus Heliaceorum, — 
